Actually Deebos math is correct...if the op is one of four people in the class and they've fucked one person, that leaves two other people to fuck, therefore the maximum percentage of classmates is seventy five - well played Deebo. W T F is obviously the ra-tard.

Although the math may be right, it's not the only answer.\nSay there are 20 people in the class. Two more would mean s/he's at thirteen now; fifteen being 75% of twenty. And actually, twenty total is far more reasonable than 4 since even the colleges with the smallest amount of students don't usually hold a class with fewer than 8-10 students.